Date: Fri, 30 May 2014 14:07:16 -0300 From: Juan Bernhard <juan@inti.gob.ar> To: freebsd-questions@freebsd.org Subject: Re: ZFS Recommendations for a new server Message-ID: <5388BAC4.6060008@inti.gob.ar> In-Reply-To: <CAHieY7Ros7sXaOpWdR7E0fZvT_m%2Bz%2Bj79CaE8szxvBEyJeHhFg@mail.gmail.com> References: <CAHieY7Ros7sXaOpWdR7E0fZvT_m%2Bz%2Bj79CaE8szxvBEyJeHhFg@mail.gmail.com>
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> Hi! > > I am setting up a new server and would like to migrate to FBSD 10 and ZFS. > I have no experience with either so asking for some guidance. Our > experience has been mostly on FBSD 8 and 9 on UFS. > > The new server has a 2 x 1TB RE4 3ware 9650SE RAID and I have friends that > tell me is actually better to use ZFS RAID instead of HW RAID1. Is this > true? Why so? > > I will ask this on the EzJail list as well but are there any things to > watch out for using EzJails on FBSD 10.0-RELEASE and ZFS ?? We are heavy > users of EzJail. > > Many thanks in advance, > > Alejandro Imass > Hi, ZFS is recommended for most cases, but it gets very slow when you need synchronous writes (ZFS/NFS: 5 mbits against ISCSI/UFS: 80mbits on same mahcine). I got terrible performance on vmware using a freebsd zfs as datastore. If your raid hardware has a battery (to flush the cache in case of power down) you will got a much better performance on this case You can improve performance using a SSD as cache (ZIL cache? Im not a guru on this stuff, you should google it, hehe) Saludos, Juan.
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